package test21.api;

import java.net.InetAddress;
import java.net.UnknownHostException;

public class API_ {
    public static void main(String[] args) throws UnknownHostException {
        //获取本机的InetAddress 对象
        InetAddress localHost = InetAddress.getLocalHost();
        System.out.println(localHost);//LAPTOP-EAVM121H/10.254.9.56

        //根据指定主机名获取InetAddress对象
        InetAddress host1 = InetAddress.getByName("LAPTOP-EAVM121H");
        System.out.println(host1);
        //3. 根据域名返回 InetAddress对象, 比如 www.baidu.com 对应
        InetAddress host2 = InetAddress.getByName("www.baidu.com");
        System.out.println(host2);

        //通过 InetAddress 对象，获取对应的地址
        String hostAddress = host1.getHostAddress();
        System.out.println(hostAddress);
        //通过 InetAddress 对象，获取对应的主机名/或者的域名
        String hostName = host2.getHostName();
        System.out.println(hostName);
    }
}
